New RigidShape method to force client

New forceClientTransform() console method to force a RigidShape's
transform on the client.  This is used when you transform a RigidShape
on the server and want the client to immediately transform rather than
interpolate to the transform.
Merge pull request #220 from DavidWyand-GG/RigidShapeChanges

New RigidShape method to force client